3LPB

Crystal structure of Jak2 complexed with a potent 2,8-diaryl-quinoxaline inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.207 
  • R-Value Work: 0.176 
  • R-Value Observed: 0.178 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Discovery and SAR of potent, orally available 2,8-diaryl-quinoxalines as a new class of JAK2 inhibitors

Pissot-Soldermann, C.Gerspacher, M.Furet, P.Gaul, C.Holzer, P.McCarthy, C.Radimerski, T.Regnier, C.H.Baffert, F.Drueckes, P.Tavares, G.A.Vangrevelinghe, E.Blasco, F.Ottaviani, G.Ossola, F.Scesa, J.Reetz, J.

(2010) Bioorg Med Chem Lett 20: 2609-2613

  • DOI: 10.1016/j.bmcl.2010.02.056
  • Primary Citation of Related Structures:  
    3LPB

  • PubMed Abstract: 
  • We have designed and synthesized a novel series of 2,8-diaryl-quinoxalines as Janus kinase 2 inhibitors. Many of the inhibitors show low nanomolar activity against JAK2 and potently suppress proliferation of SET-2 cells in vitro. In addition, compoun ...

    We have designed and synthesized a novel series of 2,8-diaryl-quinoxalines as Janus kinase 2 inhibitors. Many of the inhibitors show low nanomolar activity against JAK2 and potently suppress proliferation of SET-2 cells in vitro. In addition, compounds from this series have favorable rat pharmacokinetic properties suitable for in vivo efficacy evaluation.


    Organizational Affiliation

    Novartis Institutes for Biomedical Research, Novartis Pharma AG, WKL-136.4.96, CH-4002 Basel, Switzerland. carole.pissot@novartis.com



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Tyrosine-protein kinase JAK2AB295Homo sapiensMutation(s): 0 
Gene Names: JAK2
EC: 2.7.10.2
Find proteins for O60674 (Homo sapiens)
Explore O60674 
Go to UniProtKB:  O60674
NIH Common Fund Data Resources
PHAROS  O60674
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NVB
Query on NVB

Download CCD File 
A, B
N-methyl-4-[3-(3,4,5-trimethoxyphenyl)quinoxalin-5-yl]benzenesulfonamide
C24 H23 N3 O5 S
LYSCAOWDVVWGQK-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PTR
Query on PTR
A,BL-PEPTIDE LINKINGC9 H12 N O6 PTYR
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
NVBIC50:  42   nM  BindingDB
NVBIC50:  42   nM  Binding MOAD
NVBIC50 :  42   nM  PDBBind
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.207 
  • R-Value Work: 0.176 
  • R-Value Observed: 0.178 
  • Space Group: P 41
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 112.39α = 90
b = 112.39β = 90
c = 70.651γ = 90
Software Package:
Software NamePurpose
PHASERphasing
REFMACrefinement
XDSdata reduction
XSCALEdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-04-28
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance